<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.14/vue.js"></script>
</head>
<body>
    <div id="app">
        <my-component>
            <h3>标题</h3>
        </my-component>
    </div>
</body>
<script>
//插槽:把父组件的标签传到子组件    
Vue.component('my-component', {
    template: `
        <div>子组件
            <div>
                <slot></slot>    
            </div>    
        </div>
    `
})    
let vm = new Vue({
    el: '#app',
    data(){
        return {
        }
    }
})
</script>
</html>